According to this new paper, the climate sensitivity has been exagerated by a factor of 6.
To put it simply, it means that the models using a climate sensitivity of 6x more than normal would overshoot a lot on the predicted temperature of the planet, like this graphic shows.
MIT climate scientists Richard Lindzen and collaborator Yong-Sang Choi soon-to-be published paper (Geophysical Research Letters, American Geophysical Union) pegs the earth’s “climate sensitivity”—the degree the earth’s temperature responds to various forces of change—at a value that is about six times less than the “best estimate” put forth by the Intergovernmental Panel on Climate Change (IPCC). The smaller the climate sensitivity, the less the impact that rising carbon dioxide levels will have on the earth’s climate. The less the impact that CO2 emissions will have on the earth’s climate, the less the “problem” and ability to reverse the “problem.”
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